Paper-box machine



Patented Jan. 6,1880.

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FH. STRJIEBY.

faz/fuhr N PETERS. PHOT0-LITNOGRAPHER. WASHING'LON, D C.V

. which my invention relates.

UNITED STATES PATENT OFFICE.

FRANK H. STRIEBY, OF CLEVELAND, OHIO.

PAPER-BOX MACHINE.

SPECIFICATION forming part of Letters Patent No. 223,406, dated January 6, 1880.

Application filed March 29, 1879.

To all whom it may concern Bc it known that I, FRANK H. STRIEBY', of Cleveland, in the coun ty of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Machinery for Making Paper Boxes; and I do hereby declare the fol` lowing to be a full,.clear, and exact descrip` tion of the invention, such as will enable others skilled in the art to which it appertains to make and use it, reference being had to the accompanying drawings, which form part ot' this specitieation.

My invention relates to a machine for making paper boxes; and it consists in the arrangement ot" a reciprocating mold or die provided with arms having movable paper-turners attached thereto; of a reciprocating moldingblock provided with a movable sliding center, having guards attached thereto and projecting outwardly through openings provided for them in the moldingblock.

ln the drawings, Figure 1 represents a perspective view ot' that part of' a machine to Fig. 2 is a partial sectional view in a vertical plane, showing the pressure-foot holding a blank while the mold or die is turning the sides of a box. Fig. 3 is a partial plan, showing the manner in which the paper-turners fold thellaps around the corners ot a box. Fig. 4 is a partial sectional view of the moldingblock, showin ghow the sliding` center and guards operate to turn the marginal paper of a box. Fig. 5 isa partial sectional view, showing the moldingblock and presser-foot adapted to make plain paper boxesthat is, without trimmings or marginal paper.

A A is a general frame, of any form or material suitable for holding, containing, and accommodating the various operative parts of l my device. f l

The part of the frame A serving as the table of the machine has an opening in it, through which the mold or die passes to fold the box. This opening is provided with a central plate, E, supported by the bars E3 E3. This plate,

against which the blank is held while the box is being formed, is also the bottom of the mold or die B. This mold or die B consists of the four sides B B and B2 B?, attached to and projecting at substantially right angles from the plate B3, to which a reciprocating movement is imparted by any suitable mechanism, preferably by means ot' cams. This mold or die B is guided in its movements by the guides A2 A2, which are arranged to receive the slides A3 A3, attached to the sides B B of the mold or die B. These sides B B are provided with arms C (l, which are arranged to hold the paper-turners C C and permit them to slide thereon.

The sides B2 B2 of' the mold or die B are provided wit-h notches C2 O2, into which the paper-turners C O are thrust by the levers F F, and in this position, combined with the sides B2 B2, form the wall against which the pressure is applied by the pressure-foot.

The levers F F, which move the paper-turners C G, are attached to the mold or die B bythe pins F F. These pins form the fulcrum upon which the levers F F swing, and are adapted to engage with the paper-turners C C', either by pins, as shown, or a notch in said paperturners, or by an y other suitable method, and movement is imparted to these levers by the ends F2 F2 being brought into contact and bea ring against the stationary pins G G by the reci1. rocating movement of the mold or die B. The pins G G are made adjustable, as by this means the levers F F are adjusted.

D is the pressure-foot, and it performs two functions-first, to hold the blank `from which the box is made, and, second, to press the sides y of the box against the iiaps c a. These functions may be employed separately or in combination, as the requirements of the dilferent boxes to be made shall be found necessary. When the pressure-foot D is used simply to hold the blank to the central plate, E, the pressing mechanism maybe dispensed with, and the plate D5, of any suitable size or form, may be used. plate, D5, connected to the molding-block H by the rod D3, which is held in place by the spring H.

Attached to the plate D5 and sliding thereon are the pressure-blocks D D', provided with togglehin ges D2 D2, having their knuckles D4 projecting above the pressure-blocks D D, and are pressed down by the molding-block H coming in contact and pressing down upon the said knuckles. This movement causes the IOO blocks D D to spread apart, and-the force may be regulated by the height of the knuckles D4.

Attention is called to the fact that this pressure, being from the inside of the box, gives a `smoother and better-formed box than if aping-block H. AIts movements are as follows:

As the molding-block H descends the marginal paper b b strikes against the guards E2 E2, turning it inward. The guards, having touched the mold or die B, rest there, holding the paper b bbent inward, and the continued descent of the molding-block H thrusts the marginal paper b b into and around the interior of the box, the spring H' returning the sliding center E to its normal position as the molding-block H rises to its starting-point.

In making boxes not requiring amarginal paper, b I), the sliding center E may be dispensed with.

The operation of myinvention is as follows: A blank previously prepared is placed upon the central plate, E, in such a position that the movement of the mold or die B will bind the blank where it has been scored. The pressure-foot D then descends, clamping the blank to the central plate, E. The mold or die B then rises, pressing against and bending up the four sides of a box. (See Fig. 2.) When the mold or die B has risen suiiiciently to bend the sides of the box against the pressure-foot D, the end of the levers F F comes in contact with and bear against the stationary pins Gr G. This movement draws down the ends F2 F2 of the levers F F. and at the same time the other end of said levers throws forward the liaper-turners C', Gf, which turn the iiaps a a around the corners of the box and pass into the notches G2 C2 in the sides B2 B2 of the nlold or die B,"and in this position forms a complete receptacle, with a box inclosed therein.

The blanks which my invention is adapted to use may be made in the following manner, preferably, by cutting the paper from which said blanks are made with a knife-die made in the exact shape of the blank required. They arethen scored and nicked as the size ofthe box may require. The marginal paper or trimmings may be cut out in the same way; but the scoring is dispensed with.

The molding-block H then descending, the guards E2 E2 bend the marginal paper a a of the box inward, and hold it there until the continued descent of the molding-block H thrusts it into and around the interior of the box. The molding-block H, striking upon the knuckles D4 D4 of the toggle-hinges, presses them down. This movement spreads the blocks D Dl apart and presses them against the sides of the box, causing the paste or glue by Which the box is held ltogether to set. They pressure-foot D holds the box down until the molding-block H has withdrawn itself from the box, then rises with the said molding-block. The mold or die B then descends, leaving the box on the central plate, E, from whence it is thrust by the succeeding blank, and the operation is repeated.

1. In machinery for making paper boxes, a reciprocating mold or die adapted, by mechanism substantially in the manner shown, to actuate the mechanism for operating the dapfolders,` which are removably attached to and form a part of said mold or die, substantially as shown and described.

2. In a paper-box machine, the combination, with a suitable frame or body, the sides B B having arms C C attached thereto, of the paper-turners G C', adapted to engage the levers F F, and the levers F F, fulcra F F', attached to the body, and the stationary adjustable pins G Gr, and the central plate, E, substantially as and for the purpose described.

3. In a paper-box machine, the combination, with a vertically-reciprocating molding-block, H, arranged to receive and guide the sliding center E', provided with guards E2 E2, projecting outwardlythrough openings provided for them in the molding-block H, and the pressure-foot D, provided with suitable pressing mechanism for the purpose set forth, and connected to the molding-block H by the rod D3, substantially as shown.

4. In a paper-box machine, the combination, with-the reciprocating mold or die B, provided with the sliding paper-turners C C', of a reciprocating molding-block, H, provided with a sliding center, E', having guards E2 E2 attached thereto, and the pressure-plate D5, connected to the molding-block H by the rod D3, substantially as shown.

1n testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK H. STBIEBY.

Witnesses:

M. M. HOBART, ADELPHOS ALEXANDER.

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